期刊
PHYSICAL REVIEW D
卷 82, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.065014
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资金
- DOE [DEFG02-92ER40716]
We estimate the splitting between the spatial correlation lengths in the scalar and pseudoscalar channels in QCD at high temperature. The splitting is due to the contribution of the instanton/anti-instanton chains in the thermal ensemble, even though instanton contributions to thermodynamic quantities are suppressed. The splitting vanishes at asymptotically high temperatures as Delta M/M proportional to (Lambda T-QCD/)(b), where b is the beta function coefficient.
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